Skip to main content
Georgia Public Broadcasting Logo
  • Watch

    Featured Specials and Programs

    • All Creatures Great and Small
    • Antiques Roadshow
    • PBS News Hour
    • Miss Scarlet & The Duke
    • Finding Your Roots
    • Doc Martin
    All Programs

    GPB Originals

    • Georgia Legends
    • Lawmakers
    • A Fork in the Road
    • View Finders
    • Georgia Outdoors
    • Your Fantastic Mind
    GPB Originals

    Browse by Genre

    • Arts & Music
    • Culture
    • Drama
    • Food
    • History
    • News & Public Affairs
    • TV Schedule
    • GPB Programs
    • PBS Passport
    • TV Highlights this Week
    • PBS KIDS
    • Ways to Watch
    • Newsletters
    • Contact GPB
  • Listen

    Featured Programs

    • The Daily
    • Morning Edition
    • All Things Considered
    • Serendipity
    • John Lemley's City Cafe
    • Fresh Air
    • Here and Now
    • Code Switch/Life Kit
    • Wait Wait... Don't Tell Me!
    All Programs

    Podcasts

    • GA Today
    • Salvation South
    • Battleground: Ballot Box
    • Football Fridays in Georgia
    • Narrative Edge
    • Peach Jam Podcast
    • A Fork in the Road
    • Radio Schedule
    • GPB Classical
    • Radio Programs
    • Podcasts
    • GPB News
    • Find Your Station
    • Ways to Listen
    • Contact GPB
    • Newsletters
  • Learn

    Featured

    • Chemistry Matters
    • Classroom Conversations Podcast
    • GASHA Go! World
    • Georgia Farmcraft®
    • Georgia Classroom
    • Georgia Studies Collection
    • Econ Express
    • Let’s Go Enviro
    • Let's Learn GA!
    • Lights, Camera, Budget!
    • Live Explorations
    • Physics in Motion
    • School Stories
    • Virtual Field Trips
    • VR in the Classroom
    • Writers Contest

    For Kids & Teachers

    • GPB Games
    • PBS KIDS
    • PBS LearningMedia

    • on Twitter
    • on Facebook
    • on Email
  • News

    Featured Programs & Series

    • Lawmakers
    • Lawmakers: Beyond the Dome
    • 1A
    • Battleground: Ballot Box
    • GA Today Podcast
    • Storycorps
    • Narrative Edge

    More GPB News

    • Politics
    • Georgia News
    • Justice
    • Arts & Life
    • Health
    All GPB News
    • Radio Schedule
    • Radio Stations
    • GPB Apps
    • Podcasts
    • Contact GPB News
    • Follow Us on Apple News
    • Newsletters
  • Sports

    GHSA Sports

    • Football
    • Basketball
    • Cheerleading
    • On Demand
    • GPB Sports Blog
    All Sports

    High School Football

    • Scores & Schedule
    • On Demand
    • Teams
    • Rankings
    • Brackets
    • Heads Up Georgia
    Football Home
    • GPB Sports App
    • GPB Sports Blog
    • GPB Sports OnDemand
  • Events

    Browse by Type

    • Community
    • Donor
    • Kids & Family
    • Screenings
    All Events

    Browse by Category

    • Education
    • News
    • Sports
    • Television

    Sign up to receive GPB Event announcements via Email.

    Sign up

    • on Twitter
    • on Facebook
    • on Instagram
  • Kids & Families

    For Kids

    • Video
    • Games

    For Parents & Caregivers

    • Kids & Families Blog
    • Kids & Families Events
    • GPB KIDS - Ways to Watch
  • Support Us

    Support GPB

    • Ways to Give
    • Planned Giving
    • Sustainers
    • GPB Passport
    • Leadership Giving
    • Corporate Sponsorship
    • Vehicle Donations
    • GPB Next
    • Matching Gifts
  • Search
GPB Passport icon GPB Passport icon Passport
GPB donate icon GPB donate icon Donate
Listen Live Listen Live Watch Live Watch Live

GPB Newsletter CTA

Sign Up For Our Newsletter

News Topics

  • Georgia
  • National
  • Politics
  • Lawmakers
  • Elections

Don't Miss

Don't Miss:

  • Support GPB Today
  • Podcast: Manufacturing Danger: The BioLab Story
  • TV Highlights This Week

News Articles: astrobiology

Scientists are debating whether data from the James Webb Space Telescope is really pointing to biosignature gases in the atmosphere of planet K2-18b.

Tagged as: 

  • Science

New analysis casts doubt on 'biosignatures' found on planet K2-18b

Researchers using data from the James Webb Space Telescope recently announced they had detected biosignature gases on planet K2-18b. A new analysis of the same data casts doubt on the earlier findings

April 25, 2025
|
By:
  • Nell Greenfieldboyce
This artist's impression depicts what a water world with a hydrogen atmosphere, such as planet K2-18b, might look like.

Tagged as: 

  • Science

Are there signs of life on alien planet K2-18b, or is it just a lot of hot air?

The James Webb Space Telescope may have detected life-associated gas in the atmosphere of a far-off planet. The news is being greeted with both enthusiasm and skepticism.

April 17, 2025
|
By:
  • Nell Greenfieldboyce

Tagged as: 

  • Space

Venus and Earth used to look like 'twin' planets. What happened?

Earth, Mars and Venus all looked pretty similar when they first formed. Today, Mars is dry, cold, and dusty; Venus has a hot, crushing atmosphere. Why did these sibling planets turn out so different?

May 08, 2024
|
By:
  • Regina G. Barber
Small rocks and dust from an asteroid, outside a round sample collection device in a NASA lab.

Tagged as: 

  • Space

Take a peek at what NASA brought back from an asteroid

Scientists are thrilled with the tiny asphalt-black rocks, and most of the sample hasn't even been revealed yet.

October 12, 2023
|
By:
  • Nell Greenfieldboyce
Perseverance takes a selfie with its helicopter companion Ingenuity in the background.

Tagged as: 

  • Science

NASA's Perseverance rover marks its first year hunting for past life on Mars

Since touching down in Jezero Crater, NASA's Perseverance rover has already cached 6 samples that could one day be brought back to Earth. Astrobiologists hope they hold signs of past microbial life.

February 18, 2022
|
By:
  • Brendan Byrne

Newsletter Signup

Sign Up For Our Newsletters

Connect with GPB

  • Connect with GPB on Facebook
  • Connect with GPB on Instagram
  • Connect with GPB on Twitter
  • Connect with GPB on YouTube
  • Connect with GPB on Apple News

Footer

Footer First Nav (Main Menu)

  • Watch
  • Listen
  • Learn
  • News
  • Sports
  • Events
  • Kids & Families
  • Support Us
  • Search

Footer Second Nav Menu

  • Help Center
  • About GPB
  • Contact Us
  • Closed Captioning
  • Directions
  • Studio Production
  • Program Submissions

Footer Third Nav Menu

  • Support Us
  • Careers
  • Accessibility
  • FCC Public Files
  • Drawing Rules
  • News Media Request
  • Open Records and Document Retention Policy
  • Privacy Policy

Georgia Public Broadcasting

260 14th St. NW
Atlanta, GA 30318
United States

(404) 685-2400 In Atlanta
(800) 222-4788 Outside Atlanta
ask@gpb.org

Newsletter Signup

Sign Up For Our Newsletters

Connect with GPB

  • Connect with GPB on Facebook
  • Connect with GPB on Instagram
  • Connect with GPB on Twitter
  • Connect with GPB on YouTube
  • Connect with GPB on Apple News
© Copyright 2025, Georgia Public Broadcasting. All Rights Reserved. Georgia Public Radio® GPTV®